Collapsible window



Sept 18, 195R J. F. JOHNSON 2,568,009

COLLAPSIBLE WINDOW Filed Nov. 6, 1947 2 Sheets-Sheet l awVE OR j 3 5m ATTORNEY Sept. 18, 1951 JQHNSQN 2,568,009

, COLLAPSIBLE WINDOW Filed Nov. 6, 1947 2 Sheets-Sheet 2 vyy j Patented Sept. 18, 1951 UNITED STATES PATENT OFFICE COLLAPSIBLE- WINDOW Jay F. Johnson, Superior, Wis. Application November 6, 1947, Serial No. 784,415

4 Claims. (CI 20-40) This invention relates to windows such as disclosed in U. S. Patent No. 1,773,241 dated'August 19, 1930.

. The principal object of the instant invention is to make substantial improvements in such extendable and foldable windows to overcome certain undesirable features found in the former device.

Some of the defects in the prior device were that during cold weather the window glass would frost up making it impossible to see therethrough, and then too, there was the objection of the device being too cold to be comfortable due to lack of proper insulating construction. The operating means for the device was not fool-proof nor was adequate means provided to lock the parts in closed or open position except the weight of the individual parts.

Another object of the invention is to provide adequate novel means for control of the operable sashes of such windows in both open and closed position.

Another object is to provide an adequate frame for such windows as may be used on locomotive -ca-bs whereby same may be readily applied thereto and operated conveniently from within said cab, it'being desirable to be able to slide the window away from the window opening at times during the operation of a locomotive, especially while in the yards.

- Other objects and advantages will appear as the description of the invention proceeds.

In the accompanying drawing forming a part of this application: 7

Fig. l-isa perspective view of a window constructed in accordance with the invention showing the inside thereof Fig. 2 isa perspective view of the device from the outside thereof showing the same in partly folded position. I r r Fig. 3 is a side elevational view of Fig. 1.

" Fig. 4 is a broken central sectional view through the upper portion of the window.

Fig. 5 is a broken perspective view of the lower portion of the control and catch meansfor the window. in unlocked position.

In the drawing the reference numeral I repre-- sents the major or outer frame of the device, which may, if desired, be a fixed part of a building or other structure, though, in the instant drawings, the device is shown as a portable foldable unit which may be applied to any window opening and being especially adapted for appli- V cation to a locomotive cab window opening, the

upper portion 2 and the lower portion 3 being telescopically united with the major frame so as to be readily adjustable for application to suitable channels, not shown, which are provided on locomotives in which their common sliding windows are installed. The major frame I has suitable hand grips 4 therein to permit of ready sliding of the device in said channels in the same manner as are the common cab windows.

Hingedly secured to the outer upper and side edges respectively of the major frame lare the readily folded inwardly as indicated by the ar-' rows in Fig. 2 of the drawing, they all being of a width to form a fitted rectangular window when extended.

Each side sash 6 has a horizontal guiding channel 8 adjacent the upper and lower inner edges thereof as clearly seen in the drawings. The purpose of these channels 8 is to provide means for Fig. 6 is a like view. of the upper portion of slidably carrying the control sash 9, the connection between the control sash 9 and the side sashes 6 being as by a suitable slide such as illustrated at I0 in Figs. 7 and 8, the elongated fiat body portion sliding easily within the channel 8 and the head or lug providing adequate 45" connection to the control sash as by the recessed pin II to permit of the swinging inwardly thereof as shown in Fig. 2 when the control sash is in .its innermost position- Obviously, some other suitable slide may be used if desired, but the provision must be made for the control sash 9 to .be horizontally slidably carried by the two side sashesB in such a manner that all work freely as hereinafterset forth.

There being four channels 8, two in each side sash 6 in which four slides I0 operate, the control sash 9 is firmlysupported thereby, the fitting of the lugs on the slides ID with the pins Ii on the control sash being suiiiciently loose to permit of but slight tilting of the control sash which is necessary upon the initial closingof the extended window.

The control of the window resides in the control sash 9 and its connection to the side and bottom sashes. The connection of the side sashes to the control sash having already been defined, we will proceed with the description of the connection of I the bottom sash to the control sash.

Fixed centrally of the bottom sash I on the inner wall thereof is an angle bracket I2, it having an elongated slot I3 therein as shown, and bein bifurcated as at I4. Within the bifurcation is installed the body portion 45 of the lower slide member It as by the pin H which extends within the slot I3, the body I5 being fixed to the slide I6. Pivotally installed as by the pin I8 above the attaching pin I7 is the operating arm or lever I9 which is bifurcated centrally as at to straddle the body portion i5 when in uppermost position. The lower end of the arm I9 is rounded off as at 2| to permit of ready action of the arm without interference by the bracket I2.

Pivotally installed within the bifurcation 20 of the arm I9 is the locking pitman 2-2, the same being installed sufficiently remot from the pin l8 as to permit the arm to completely straddle the body I5 in locked position. The locking pitman 22 is bent or ofiset as at 23 so that when the arm I9 is positioned againstthe slide member I 6 the offset portion will lie within the bifurcation 24 of the slide I6 and will thus provide an ofiset snap lock arrangement for the purpose hereinafter set forth.

The upper end of the pitman has a bifurcated portion 25 which is pivotally secured as at 26 to the lu 2I projecting from the upper slide 28 of the snap locking arrangement, the pivotal point 26 being substantially in the same plane as the pivot I8 of the arm 19, thereby insuring a positive snap locking action of the offset pitman when locked.

It is to be noted that the control sash 9 is made in substantially two separate equal parts, they being joined centrally only by the front or outer face member 29 of the control sash and a small rectangular facing. plate 30 adjacent the upper edge thereof.

slightly apart to make a channel ill in which the pitman 22 may be operated and inwardly of the channel 3| adjacent the face member 29 of the control sash is a wider and thinner channel 32 which extends the full height of the control sash and in which the slides I6 and 28 operate vertically.

The connection of the control :sash 9 to the bottom sash I is, as may be clearly seen, vertically slidable, but of such nature that the outer .end of the bottom sash is always adjacent the control sash. This feature permits of the ready opening and closing of the device by manipulation of the handle 33 on the operating lever or arm I9.

The operation of the devic is as follows: Assuming the window is in open position as shown in Fig. 1 of the drawing, all that is required to fold the same is to grasp the handle 33 and pull upwardly and inwardly. This will cause the 201111- er edge of the bottom sash 1 to be raised, the slides I6 and 28 will ,be moved upwardly in the slot or channel 32, and the control .sash 9 will be drawn inwardly, the bottom thereof leadin the top slightly due to theinward pull being from I Iii) that portion and also to the fact that along the bottom face of the top sash 5 adjacent the outer edge thereof is a stop 34 which holds the upper portion of the control sash from falling inwardly when the device is in open position. The fact that the lower portion of the control sash moves inwardly ahead of the upper portion on the initial closing movement thereof, permits the upper portion to readily free itself from the stop 3!! by presenting an inclined face thereto which, when pulled inwardly, will cause the top sash to lift enough to permit of the upper edge of the control sash passing thereunder.

As the control sash is moved inwardly by pulling upwardly and inwardly on the handle 33, the bottom sash I continues to be drawn or swung upwardly, the side sashes are drawn inwardly, and the top sash falls downwardly as clearly illustrated in Fig. 2 of the drawing, until all parts lie in a parallel plane. At this time the locking means is in unlocked position substantially as illustrated in Figs. 5 and 6 of the drawing.

The locking of the device is accomplished by swinging the lever I9 upwardly. The upper slide 28 is then moved farther upwardly by the pitman 22 until it extends upwardly beyond the upper edge of the control sash. Here it comes into contact with and engages the hooked .end of the tongue-like catch member 35 which rests on the frame of the window when the device is in open position and as it is closed, the hooked end is moved upwardly into the slot 36 in the upper inner edge of the frame I as shown in dotted lines Fig. 4, the frame adjacent the slot 36 being bent upwardly as at 31 to insure such action. The outer end of the catch 35 is fixed to the inner face of the upper sash as shown.

As the lever I9 is swung farther upwardly towards locked position the slide 28 pushes the catch 35 farther into the .slot 36 which pulls the top sash firmly against the closed side sashes holding them in firm closed position.

When the lever I9 finally straddles the body portion I5 the offset pitman snaps into locked position and is held there by the offset construction thereof. When the lock is thus snapped, the bottom sash I is held in fixed relation to the window frame and the control sash on one side, and the top sash 5 is held in innermost position in relation to the window frame against the side sashes on the opposite side to the bottom sash. This one looking arrangement then, holds the entire device in firm folded relation for easy transportation or whenever the window is in folded position or not in use.

It is to be noted that the glass of the control sash 9 and the side sashes 6-45 .is double and set in a rubber gasket 38 to provide insulation and prevent the windows from frosting over in cold weather. This feature is especially essential when the window is to be used on locomotives where visibility is of extreme importance.

Each side sash has a lip .39 projecting inwardly along the outer edge thereof which limits the outward movement of the control sash and a lip projecting inwardly from the lower edge thereof which limits the downward swing of the bottom sash thereby insuring a sturdy structure free from rattles.

Having thus described my invention, what I claim is:

1. In a foldable window, a frame, an upper sash, a lower sash, and two opposed side sashes hinged to and about the innermost edges of 'sa'idframe, a central sash carried by said side sashes for control of all of said sashes, said side sashes having a pivotal and sliding connection with said control sash so as -to be moved by the latter, said sashes being pivoted to extend in angular relation to said frame forming a box-like extension from said frame when in unfolded position and pivoted to extend in substantial alinement with said frame when in folded position, means for locking said sashes in closed position comprising a vertically reciprocable snap lock carried by and intermediate the bottom of one of said sashes and said central sash, a slide vertically operable by said snap lock and carried by said central sash, and a catch carried by the upper one of said sashes which is engageable by said slide to lock said sashes in closed position with said top sash overlapping said side and control sashes.

2. A foldable window comprising a frame, an upper sash, a lower sash, and two side sashes hinged to said frame on the inner edges thereof, a central sash slidably carried by said side sashes for control of all of said sashes, said sashes being pivoted to extend in angular relation to said frame forming a box-like extension from said frame when in unfolded position and pivoted to extend in substantial alinement with said frame when in folded position, a slide carried by said control sash and vertically slidable thereon, a lever pivotally carried by said slide, a pivotal attachment from said bottom sash to said slide, a pitman carried by said lever, an upper slide pivotally carried by said pitman and slidable on said central sash, and a catch carried by said top sash opposite to said last mentioned marginal sash which is engageable by said upper slide to hold all of said sashes in folded position when said lever and pitman are in locked position.

3, A foldable window comprising a frame; a

top, bottom, and two side sashes hingedly carried by said frame; a central sash slidably carried by said two side sashes and adapted to operate and control all of said sashes; said top, bottom, and side sashes being pivoted to extend in angular relation to said frame forming a boxlike extension from said frame when in unfolded position and pivoted to extend in substantial alinement with said frame when in folded position; said central sash being laterally slidably mounted on said side sashes so as to be movable towards and away from said frame between said sashes; a vertically operable slide pivotally connected intermediate of said central sash and said bottom sash; a lever carried by said slide; an upper slide; an offset pitman connecting said upper slide to said lever; said slides being guided on said central sash; and a catch carried by said top sash and engageable by said upper slide; said lever being operable to move said upper slide into position to engage said catch to lock said window in folded position.

4. The structure as set forth in claim 3 and said window being foldable from open to closed position by pivoting said bottom slide upwardly on its pivotal connection to said frame so as to draw said central, side, and upper sashes inwardly toward said frame.

JAY F. JOHNSON.

REFERENCES CITED UNITED STATES PATENTS Name Date Riddell et al. Aug. 19, 1930 Number 

